302 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Regarded by Miller (Proc. biol. soc. Washington, xi, p. 80, April 
21, 18,97) as identical with P. orophilus (p. 111). 
• 
Phenacomys oramontis Rhoads. 
1895. Phenacomys oramontis Rhoads, Amer. nat., xxix, p. 
941. October, 1895. 
Type locality. — Mount Baker Range, British Columbia, 
Canada. Altitude, 6000 feet. 
Regarded by Miller (Proc. biol. soc. Washington, xi, p. 80, April 
21, 1897) as identical with P. orophilns (p. 111). 
Phenacomys ungava Merriam. 
1889. Phenacomys nngava Merriam, North Amer. fauna, no. 
2, p. 35. October 30, 1889. 
Type locality. —- Godbout, Quebec, Canada. 
Regarded by Miller (Proc. .biol. soc. Washington, xi, p. 80, April 
21, 1897) as identical with P. celatus (p. 112). 
Evotomys fuscodorsalis Allen. 
1894. Ecotomys fuscodorsalis Allen, Bull. Amer. mus. nat. 
hist., Yi, p. 103. April 14, 1894. 
Type locality. — Trousers Lake, New Brunswick, Canada. 
Regarded by Bailey (Proc. biol. soc. Washington, xi, p. 122, May 
13, 1897) as a color phase of E. gapperi (p. 113). 
Evotomys pygmaeus Rhoads. 
1894. Evotomys pygmaeus Rhoads, Proc. acad. nat. sci. 
Phila., p. 284. October 23, 1894. 
Type localitaa —Mouth of the • Nisqually River, Pierce 
County, Washington. 
Regarded by Bailey (Proc. biol. soc. Washington, xi, p. 122, May 
13, 1897), as identical with E. occidentalis (p. 115). 
Subgenus Tetramerodon Rhoads. 
1894. Tetramerodon Rhoads, Proc. acad. nat. sci. Phila., p. 
282. October 23, 1894. Type. —Arvicola tetramerus Rhoads. 
Regarded by Miller (North Amer. fauna, no. 12, pp. 18-19, 62, 
July 23, 1893) as identical with the subgenus Microtus (p. 116). 
